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Old 11-29-2004, 07:40 PM
acr acr is offline
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Exhaust Resonation at about 1900 RPM's

I changed out the 2.75 ring & pinion for a 3.50 & now have a small annoying exhaust resonation/vibration from about 1700-1900 RPM's. I can live with it but it's annoying the wifey (no I don't want to get rid of her!!). Any ideas? Exhaust system & car as follows;
1936 Plymouth sedan fully insulated & full interior.
SBC 350 w/Rams Horn manifolds, 2.5 inch pipes, "H" crossover & 50 Series Flowmasters w/SS megs for tips. Also, system sounds very good & I'd hate to loose that. Thanks.

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Old 11-29-2004, 08:01 PM
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exhaust resonance

Im curious as to what kind of exhaust hangers you have on your vehicle. Are they solid metal straps or do they have a rubber strap or bushing in them?
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Old 11-29-2004, 08:13 PM
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Rubber bushings front & back but I just found a loose hanger in the rear on the passengers side. Maybe you solved my problem Max!
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Old 11-29-2004, 08:18 PM
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exhaust resonation

LOL, sounds like it. What I was going to recommend is going to the metal strap hangers with rubber straps between them and the clamps.
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